Do you have any good science project ideas for a 7th grader?

Science Project !!!?

• For My Science Fair Project I will be choosing, "What different materials can you use to make plastic?" is this a good expirement to do for a 7th grader? If not how can I make this project seem like it's for a 7th grader? Also my science teacher that is helping, told me to catagorize it in either, aerospace, biochemistry, earth science, engineering, environmental science, material science, or physics? I would think engineering or material science but i don't really know! Does anyone have a good website that talks about that expirement?? Also if this isn't a good science project what would be a good one that involves medicine.. Also any other tips to make a good science fair project? any information? tips? ideas?

• Answer:

  In the old days plastic was made from milk, believe it or not. http://chemistry.about.com/cs/howtos/ht/dairyplastic.htm